JP4843380B2 - Bicycle dynamo tilting device - Google Patents

Description

  The present invention relates to a bicycle dynamo raising / lowering device that can switch a dynamo of a bicycle headlight between a use state and a non-use state by remote control.

The general structure of a bicycle dynamo is to urge the dynamo body by a spring when it is used, for example, to generate power by pressing the trochanter of the dynamo body against the front wheel, and when not in use, the dynamo body is raised and locked It is locked at a non-use position by a lock means such as a hook.
The above-described bicycle dynamo is configured to switch between a use state and a non-use state by directly operating a switching lever attached to the dynamo body by hand. In such a switching method, it is necessary to operate after getting off the bicycle. In order to eliminate this inconvenience, the inventor has invented a switching device that switches between the use position and the non-use position of the dynamo by hand operation, as disclosed in Patent Document 1.

The bicycle dynamo switching device disclosed in Patent Document 1 connects the operating lever and dynamo at hand with a connecting rod so that the switching operation can be performed. Also, as disclosed in Patent Document 2, there has been proposed a device in which a handy operating means and a dynamo are connected by a wire to perform a switching operation.
JP 2004-237823 A Japanese Utility Model Publication No. 62-185187 Japanese Utility Model Publication No. 03-108592

  Any of the inventions disclosed in Patent Documents 1 to 3 can perform the dynamo switching operation at hand. However, the inventions described in Patent Documents 1 and 3 are a connecting rod that connects the operating means and dynamo at hand. The operation is performed by connecting them with. In such a case, the arrangement of the connecting rod and the arrangement of the operation means are limited, the position of the operation means cannot be determined freely, and the structure is expensive.

  In the dynamo switching structure disclosed in Patent Document 2, the dynamo is constantly urged by a spring in the inclined direction that is the dynamo usage position, and the dynamo is raised by the wire to maintain the unused state. . According to the present invention, since the dynamo body is raised and lowered by connecting the operation means provided on the handle and the dynamo with a wire, the disadvantages due to the connection of the connecting rod can be eliminated.

  However, in a non-use state in which the dynamo is raised, a tensile force is always applied to the wire against the elastic force of the spring that biases the dynamo in the tilt direction. In the present invention, there is a drawback that the wire is always loaded, and there is a possibility that the wire may be stretched by long-term use, and the operating means for holding the wire in a pulled state is easily damaged.

The present invention is a bicycle dynamo raising / lowering device that uses a wire in view of the above-described drawbacks of the prior art, and does not always apply a pulling force to the wire, has excellent durability, and is long. It is intended to realize a bicycle dynamo tilting device that can be used in a stable state over a period of time and has excellent operability .

  In the dynamo according to the present invention, the dynamo main body 1 is fixed to the first shaft 2 and the dynamo main body 1 fixed to the first shaft 2 is urged by the spring 3 in the inclined direction that is in use. Furthermore, the tip end portion of the locking rod 5 that is pivotally supported by the second shaft 4 is brought into contact with the dynamo body 1 or a member that fixes the dynamo body 1 to lock the dynamo body 1 in the non-use position.

Then, by pushing the wire 6 of arranging the operating end to the distal septum position against the elastic force of the spring 3 urges the dynamo body 1, unused engagement of dynamo body 1 engagement rod 5 The dynamo body 1 is rotated to the use position by rotating from the stop position. Further, when the dynamo body 1 is in the use position, the locking rod 5 is rotated by the pulling force of the wire 6. Thereby, the dynamo body 1 is rotated from the use position to the non-use position, and is held at the non-use position by the locking rod 5.

Further, the operating portion of the wire 6 to be disposed in distal septum position, composed of the operation plate 8 which rotates relative to the base plate 7 and the base plate 7. One end of the wire is fixed to a part of the operation plate 8, the wire 6 is wound inside the operation plate 8, led out to the outside from the opening 9 of the base plate 7, and the operation plate 8 is rotated. an invention according to raisably device row cormorants bicycle dynamo extrusion and pulling operation of the wire 6.

According to the first aspect of the present invention , the finger rest portion 10 is formed to project from the base plate 7, and the finger rest portion 11 is formed to project from the operation plate 8, and the finger rest portion 10 of the base plate 7 and the finger rest portion of the operation plate 8 by fingers. The pulling operation of the wire 6 is performed by 11 pinching operations.

The invention according to claim 2 is the invention according to claim 1 , wherein a guide groove for winding the wire 6 whose outer periphery is opened is formed on the operation plate 8, and the outer periphery of the guide groove is formed on the base plate 7. A metal guide member 12 having a surrounding guide wall 12a is provided, and the guide wall 12a of the guide member 12 and the guide groove 24 formed in the operation plate 8 form a passage for the wire 6. Then, the wire 6 to be spread in the passage is supported by the guide wall 12a of the guide member 12 made of metal.

The bicycle dynamo raising / lowering device according to the present invention rotates the locking rod 5 that locks the dynamo main body at a non-use position by pushing the wire. Thereby, the dynamo main body 1 is urged | biased in the inclination direction which is a use state by the elastic force of the spring 3. FIG. At this time, no external force acts on the wire 6.
In order to change the dynamo body 1 from the use position to the non-use position, the locking rod 5 is rotated by the pulling force of the wire 6. As a result, the dynamo body 1 is rotated from the use position to the non-use position and is locked to the non-use position by the lock rod 5. When the dynamo body 1 is locked at the non-use position by the locking rod 5, no pulling force (external force) acts on the wire 6. In this way, since external force does not act on the wire 6 except during operation, the wire is not stretched or fatigued, or the force does not always act on the operation part, and a stable operating state can be maintained. It is .

Also, extrusion and pulling operation of the wire 6 is thus carried out rotational operation of the control plate 8 is an operation unit for remotely located, such as the handle.

Above, the dynamo raisably device for bicycles, according to the first aspect of the invention, the finger hook portion 10 of the base plate 7, so as to sandwich the finger hook portion 11 of the operation plate 8, easy single and effective force The pulling operation of the wire can be performed in the acted state.

According to the second aspect of the present invention, in the operation part constituted by the base plate 7 and the operation plate 8, the operation part which is one end of the wire can be stably arranged to realize a stable operation state, and the wire the force to to spread by the elastic force of 6 itself, by supporting receiving the guide wall 12a of the metal guide member 12, it is possible to improve the durability.

Embodiments of a bicycle dynamo raising / lowering device according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 to FIG. 3 are partially longitudinal side views showing an embodiment of a dynamo raising / lowering mechanism according to the present invention. FIG. 1 is a non-use state in which a dynamo body is raised, and FIG. FIG. 3 shows a state where the dynamo body is used. 4 is a rear view of the whole dynamo, and FIG. 5 is a front view of the whole dynamo.

The dynamo body 1 is fixed to the first shaft 2, and the undulation operation is performed by rotating the first shaft 2. The first shaft 2 is pivotally supported on the mounting base 13 of the dynamo body 1, and the mounting base 13 is provided with a second shaft 4 parallel to the first shaft 2. When the operating rod 14 diametrically penetrated is fixed to the first shaft to which the dynamo body 1 is fixed, and one end of the spring 3 around which the first shaft 2 is wound is fixed to the base end of the operating rod 14 to together, to abut against the side walls of the mount 13 to the other end of the spring 3. Further, the distal end portion of the operating rod 14 is locked to the distal end of the locking rod 5 that is pivotally supported on the second shaft 4.

  With this configuration, the dynamo body 1 is urged in the left-turning direction in the drawing, which is the use position of the dynamo body 1, by the elastic force of the spring 3, and the distal end portion of the operating rod 14 is engaged with the locking rod 5. The dynamo body 1 shown in FIG. 1 is held at the unused position where it is raised. The second shaft 4 is provided with a weak spring 15 and the spring 15 always presses the locking rod 5 against the operating rod 14 as shown in FIG. 3 to prevent rattling due to vibrations during bicycle travel. ing.

  Another support plate 16 is fixed to the mounting base 13 of the dynamo body 1, one end of the wire tube 6 a of the wire 6 is fixed to the support plate 16, and a wire fixture 17 is attached to the proximal end portion of the locking rod 5. Is provided. The wire 6 passed through the wire tube 6 a is fixed to the wire fixture 17. Thereby, the rotation operation of the locking rod 5 can be performed by pushing out the wire 6 or pulling it.

  The locking rod 5 pivotally supported by the second shaft 4 has a distal end abutting on the distal end portion of the operating rod 14 and one end of the wire 6 fixed to the proximal end. At the locking position indicated by the dotted line in FIG. 2, the crossing angle α between the center line connecting the rotation center of the tip of the locking rod 5 and the operating rod 14 is an acute angle, and the elastic force of the spring 3 is It acts in the direction of maintaining 5 in the locked state. However, when the wire 6 is pushed out and the crossing angle α of the operating rod 14 and the center line connecting the rotation center of the tip of the locking rod 5 becomes a right angle as shown by the solid line in FIG. When the angle α becomes an obtuse angle without acting as a turning force on the rod 5, it acts as a force for rotating the locking rod 5 in the right direction in the drawing.

  That is, the wire 6 is pulled out by the elastic force of the spring 3, and the locking rod 5 is rotated rightward as shown in FIG. 3, and the first shaft 2 is rotated leftward so that the dynamo body 1 is rotated. It becomes the use state. In this way, the extrusion by the wire 6 pushes out a slight dimension, for example, a dimension X in FIG. 2, in which the crossing angle α of the center line connecting the rotation center of the tip of the locking rod 5 and the operating rod 14 becomes an obtuse angle. Thus, the use position can be switched from the non-use position of the dynamo body 1.

In the usage mode in which the force is transmitted by extruding the wire, the buckling phenomenon may occur due to the force in the compression direction against the wire, but the extruding of a short dimension as shown in the example prevents the occurrence of the buckling phenomenon. And can be used stably. In order to avoid the buckling phenomenon as much as possible, it is necessary to bend the locking rod 5 as shown in the example and reduce the protruding dimension Y of the wire 6 protruding from the wire tube to the wire fixture 16 as much as possible. preferable.
In order to change from the usage state of the dynamo main body shown in FIG. 3 to the non-use state of the dynamo main body shown in FIG. 1, it is changed by pulling up the locking rod 5 by a pulling operation which is a normal usage form of the wire 6. be able to.

One end of the wire 6 is connected to the wire fixture 17 of the locking rod 5 as described above, but the other end of the wire 6, that is, the operation end is connected to an operation part arranged at a remote position such as a part of the handle. The wire is pushed out and pulled.
As shown in FIG. 7, the wire operation unit includes a base plate 7 and an operation plate 8 that rotates with respect to the base plate 7. Then, one end (operation end) of the wire 6 is fixed to a part of the operation plate 8 and is formed on the base plate 7 in a state where the wire 6 is wound around the operation plate 8 at a certain angle (approximately 90 degrees in the drawing). The wire 6 is led out from the opening 9 through the guide hole 18 so that the wire 6 can be pushed out and pulled by rotating the operation plate 8.

  In order to fix one end of the wire 6 to the operation plate 8, a bulging portion 19 is formed at one end of the wire 6 as shown in FIG. 9, and the bulging portion 19 is detachably fitted into the recess 20. It can be easily implemented by pulling out in the outer circumferential direction. That is, a cylindrical groove wall 21 is formed on the inner surface of the operation plate, a recess 20 is formed at an inner position of the groove wall 21, and a wire 6 having one end fitted into the recess is passed through the groove wall 21. The one end of the wire 6 can be fixed to the operation plate 8 by pulling outward and fixing the annular fixing plate 22 having a diameter larger than the diameter of the groove wall 21 to the end surface of the groove wall 21. That is, a groove wall 21 is provided inside the operation plate 8 formed in a cup shape, and one end of the wire is attached thereto, and an annular fixing plate 22 is fixed to the end surface of the groove wall 21 with a screw 23 or the like. A guide groove 24 for winding the wire 6 whose outer periphery is opened around the operation plate 8 is formed.

  A metal guide member 12 is disposed in the base plate 7. The guide member 12 is formed in a dish shape having a guide wall 12a that can surround the outer periphery of the guide groove 24, and a notch 25 is formed in a portion facing the opening 9 that pulls out the wire 6 to the outside. It does not get in the way of operation. With the above structure, the wire 6 fixed to the operation plate 8 and rotated around the guide groove 24 by a certain angle is led out from the opening 9 and the operation plate 8 is rotated to push out the wire 6. Operation and pulling operation can be performed.

  The size of the guide groove 24 formed by the groove wall 21 and the fixing plate 22 is a size that allows the wire 6 to pass therethrough and does not produce a large gap, for example, the gap is set to about 0.1 mm to 0.5 mm. As a result, it is possible to prevent the occurrence of rattling or buckling of the wire. Further, the wire 6 that is usually made of steel and wound around the guide groove 24 is subjected to a force of spreading by its own elasticity. At this time, since the outer periphery of the guide groove 24 is surrounded by the metal guide wall 12a, the wire 6 is pressed against the surface of the guide wall 12a. Therefore, it can be operated easily and slippery, and even if the base plate 7 and the operation plate 8 are made of synthetic resin, they can be excellent in wear resistance.

  The base plate 7 and the operation plate 8 are assembled in a rotatable state, and their specific structures can be designed in various ways. In the illustrated embodiment, center holes 7a and 8a are formed in the base plate 7 and the operation plate 8, respectively, and the center shaft member 26 is penetrated to be rotatable. The central shaft member 26 may be one member that penetrates the base plate 7 and the operation plate 8, but in the illustrated example, the central shaft member 26 that penetrates the operation plate 8 and the lower shaft that penetrates the base plate 7. In addition to a screw hole 27, a plurality of fan-shaped (arc-shaped) partial through holes 28, 28 are formed in the center of the metal guide member 12, and the tip surface of the lower shaft member 29 The projections 30 and 30 having a shape corresponding to the through hole 28 are formed on the base plate 7, and the screws 31 are fixed in a state where the projection 30 is fitted in the through hole 28, so that the base plate 7 and the dish-shaped guide member 12 are Positioning is in progress.

  The lower shaft member 29 is made of synthetic resin, and an annular belt portion 32 is integrally formed so that it can be attached to a bicycle handle. Further, the base plate 7 is provided with a tightening portion 33 in the extending direction of the opening 9 through which the wire 6 is led out, so that the wire tube 6a of the wire 6 can be fixed.

  On the base plate 7 of the operation unit that is fixed at a remote position such as a handle, a finger hooking portion 10 that protrudes in the outer peripheral direction is formed to protrude. The operation plate 8 that rotates with respect to the base plate 7 is also provided with a finger hook portion 11 that protrudes in the outer peripheral direction. Therefore, the operation plate 8 can be easily rotated by operating to sandwich the two finger-hanging portions. The opening angle β between the finger rests 10 and 11 is set to about 60 degrees in consideration of the convenience of operation, and the operation can be performed within a range of about 60 degrees to about 30 degrees, so that it is easy to use. I was able to.

  In addition, in FIG. 4, 34 is a trochanter of the dynamo body 1, 35 is a lamp support rod, and the base end portion of the lamp support rod 35 is fixed to the mounting base 13 such as the first shaft 2 and the lamp 36 is attached to the tip. Is to be worn. The mounting base 13 is fixed to a predetermined position of the front wheel portion of the bicycle frame together with the support plate 16 fixing the wire tube 6a.

FIG. 1 is a partially longitudinal side view of a dynamo raising / lowering mechanism only, showing a non-use state in which the dynamo body is raised, FIG. 2 is a partially longitudinal side view of the dynamo raising / lowering mechanism only, showing a state immediately after pushing out the wire, , FIG. 3 is a partially longitudinal side view of the dynamo raising / lowering mechanism only, showing the use state in which the dynamo body is defeated, 4 is a rear view of the entire dynamo. FIG. 5 is a front view of the entire dynamo. FIG. 6 is a plan view of only the operation part of the dynamo raising / lowering device, FIG. 7 is an exploded perspective view of an operation unit of the dynamo raising / lowering device, FIG. 8 is a longitudinal sectional view of the operation part of the dynamo raising / lowering device, FIG. 9 is a cross-sectional view of the operation unit of the dynamo raising / lowering device.

DESCRIPTION OF SYMBOLS 1 ... Dynamo body, 2 ... 1st axis | shaft, 3 ... Spring, 4 ... 2nd axis | shaft, 5 ... Locking rod, 6 ... Wire, 6a ... Wire tube, 7 ... Base plate, 7a, 8a ... Center hole, 8 ... Operation plate 9 ... Opening part 10,11 ... Fingering part 12 ... Guide member 12a ... Guide wall 13 ... Mounting base 14 ... Operating rod 15 ... Spring 16 ... Support plate 17 ... Wire fixture 18 ... guide hole, 19 ... bulge, 20 ... recess, 21 ... groove wall, 22 ... fixing plate, 23 ... screw, 24 ... guide groove, 25 ... notch, 26 ... center shaft member, 27 ... screw hole 28 ... Through hole, 29 ... Lower shaft member, 30 ... Projection, 31 ... Screw, 32 ... Belt part, 33 ... Tightening part, 34 ... Trochanter, 35 ... Lamp support rod, 36 ... Lamp.

Claims (2)

The dynamo main body is fixed to the first shaft, and the dynamo main body fixed to the first shaft is urged by a spring in the inclined direction of use, and the tip portion of the locking rod that is pivotally supported on the second shaft is the dynamo main body. part or brought into contact with the member securing the dynamo body, there is locking the dynamo body non-use position,
By extruding the wire placing the operating end to the distal septum position against the elastic force of the spring urges the dynamo body rotates the latching rod from unused locking position of the dynamo body, The dynamo body is rotated to the use position by the spring force of the spring, and the locking rod is rotated by the pulling force of the wire to rotate the dynamo main body from the use position to the non-use position. a bicycle dynamo to Ru is engaged,
The operation part of the wire arranged at a remote position is composed of a base plate and an operation plate that rotates with respect to the base plate, and the wire of the base plate is wound with a wire having one end fixed to a part of the operation plate. Derived from the opening to the outside, the wire is pushed and pulled by turning the operation plate.
A bicycle characterized in that a finger-hanging portion protrudes from the base plate and a finger-hanging portion protrudes from the operation plate, and the wire is pulled by holding the finger-holding portion of the base plate and the finger-holding portion of the operation plate with fingers. Dynamo tumble device. A guide groove for winding a wire whose outer periphery is opened on the operation plate is formed, and a metal guide member provided with a guide wall surrounding the outer periphery of the guide groove is provided on the base plate. forming a passage of the wire in the guide wall and the guide groove, to spread it to the bicycle dynamo raisably apparatus according to claim 1, wherein the wire is characterized in that to支受by a metal guide wall.

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